exo-3,6-Epoxy-1,2,3,6-tetrahydrophthalic anhydride
Also known as: exo-7-Oxabicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic anhydride, (3aR,4S,7R,7aS)-3a,4,7,7a-Tetrahydro-4,7-epoxy-2-benzofuran-1,3-dione, 4,7-Epoxyisobenzofuran-1,3-dione, 3a,4,7,7a-tetrahydro-, (3aR,4S,7R,7aS)-, exo-3,6-Epoxy-1,2,3,6-tetrahydrophthalic anhydride 97%, exo-3,6-Epoxy-1,2,3,6-tetrahydrophthalic anhydride 98+%, MFCD00151506, EINECS 226-570-2, anhydride of rel-(1R,2S,3R,4S)-7-oxabicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid
exo-3,6-Epoxy-1,2,3,6-tetrahydrophthalic anhydride (CAS 6118-51-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H6O4 and a molecular weight of 166.131 g/mol. Key properties include a melting point of 118ºC, a boiling point of 372.0±42.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 172.2±27.9 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 6118-51-0
- Jingsj CID
- J-46689-7
- Molecular Formula
- C8H6O4
- Molecular Weight
- 166.131 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 118ºC |
|---|---|
| Boiling Point | 372.0±42.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 172.2±27.9 °C |
| Exact Mass | 166.026611 |
| PSA | 52.60000 |
| LogP | -0.77 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.584 |
| Additional Property | Hydrolyzes in water. |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2932999099 |
|---|---|
| Summary | 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of exo-3,6-Epoxy-1,2,3,6-tetrahydrophthalic anhydride?
The CAS number of exo-3,6-Epoxy-1,2,3,6-tetrahydrophthalic anhydride is 6118-51-0.
What are the molecular formula and molecular weight of exo-3,6-Epoxy-1,2,3,6-tetrahydrophthalic anhydride?
exo-3,6-Epoxy-1,2,3,6-tetrahydrophthalic anhydride has molecular formula C8H6O4 and molecular weight 166.131 g/mol.
Is exo-3,6-Epoxy-1,2,3,6-tetrahydrophthalic anhydride hazardous?
exo-3,6-Epoxy-1,2,3,6-tetrahydrophthalic anhydride has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of exo-3,6-Epoxy-1,2,3,6-tetrahydrophthalic anhydride?
For exo-3,6-Epoxy-1,2,3,6-tetrahydrophthalic anhydride, Upstream Products: Furan, Maleic anhydride, Water; Downstream Products: Maleic anhydride, Phthalic anhydride, Maleic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "exo-3,6-Epoxy-1,2,3,6-tetrahydrophthalic anhydride (CAS 6118-51-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-46689-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.